1/3 Inches to Mm conversion

Inches to Millimeters

Convert inches to millimeters for precise measurements in engineering, manufacturing, and crafts.

How many Millimeters in a Inch

One inch is equal to 25.4 millimeters:

1in = 25.4 × 1 = 25.4mm

Common Inch Fraction to mm Conversions

Inch (Fraction)Millimeters (mm)
1/2"12.7000 mm
1/3"8.4667 mm
1/4"6.3500 mm
1/5"5.0800 mm
1/6"4.2333 mm
1/8"3.1750 mm
1/16"1.5875 mm
2/3"16.9333 mm
2/5"10.1600 mm
3/5"15.2400 mm
4/5"20.3200 mm
5/6"21.1667 mm
3/8"9.5250 mm
5/8"15.8750 mm
7/8"22.2250 mm
3/16"4.7625 mm
5/16"7.9375 mm
7/16"11.1125 mm
9/16"14.2875 mm
11/16"17.4625 mm
13/16"20.6375 mm
15/16"23.8125 mm

Inches to Millimeters Conversion Table

Inches (in)Millimeters (mm)
1 in25.4 mm
2 in50.8 mm
3 in76.2 mm
4 in101.6 mm
5 in127 mm
6 in152.4 mm
7 in177.8 mm
8 in203.2 mm
9 in228.6 mm
10 in254 mm
20 in508 mm
30 in762 mm
40 in1,016 mm
50 in1,270 mm
60 in1,524 mm
70 in1,778 mm
80 in2,032 mm
90 in2,286 mm
100 in2,540 mm

Common Use Cases for Inches to Millimeters Conversion

Discover practical applications and real-world scenarios where converting in to mm is essential for accuracy and efficiency.

Why This Conversion Matters:

Converting in to mm ensures accuracy, compliance with standards, and seamless communication across different measurement systems.

1

Engineering & Machining

In machining and engineering, precise measurements are critical. Converting inches to millimeters is a standard requirement for international projects.

2

Woodworking & Crafts

Many plans and tools use imperial units. This converter helps you easily switch to metric for more precise cuts and measurements.

3

3D Printing

Filament diameters and print specifications are often in millimeters. Convert your inch-based designs to metric for accurate 3D printing.

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